APM manufactures different type Bicycle Bolts, Quick Releases and Ball Retainers..

Titanum, Alloy. Steel, Cr-Mo. Dia:25.4~34.9mm, L:121/126/128/155/165mm. Front: 9*101*108mm. Rear:10*134*136*140*145mm.. 

Forged bent arm level QR similar function shape as SHIMANO steel type, hand stylish level gained smoother close routing also obtains a easier space arrangement when QR close. Ball retainer:1/4"x9. 5/32"x16. 3/16"x15A. 5/16"x9. 3/16"*7. 1/4"x7